INTERNALLY DEVELOPED SOFTWARE (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Capitalized software development costs
Amounts capitalized, beginning of year	$ 68,862,000	$ 62,962,000
Development costs capitalized	7,154,000	6,061,000
Dispositions	(44,000)	(161,000)
Amounts capitalized, end of year	75,972,000	68,862,000
Accumulated amortization, end of year	(61,259,000)	(52,661,000)
Internally developed software, net	14,713,000	16,201,000
Capitalized software development costs for projects in progress	1,000,000	3,700,000
Amortization expense recognized related to capitalized software development costs	$ 8,600,000	$ 8,800,000	$ 8,600,000